Feed-water heater.



No. 627,980. Patented July 4, I899. J. W. CASEY.

FEED WATER HEATER.

(Application filed Oct. 3, 1898.)

(No Model.)

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UNITED STATES PATENT OFFICE.

JOHN V. CASEY, OF SISTERSVILLE, WVEST VIRGlNIA.

FEED-WATER HEATER.

SPECIFICATION forming part of Letters Patent No. 627,980, dated July 4, 1899.

Application filed October 3, 1898. Serial No. 692,495. (No model.)

To all wiwm it may concern.-

Be it known that LJOHN W. CASEY, of Sistersville, in the county of Tyler and State of West Virginia, haveinvented certain new and useful Improvements in Feed-Water Heaters; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyingdrawings, and to the letters of reference marked thereon, which form part of this specification.

This invention relates to feed-water heaters which are located in the furnace of steamboilers, and has for its object the better circulation of the water through the heater whether the feed-water is being fed to the boiler or cut 0E, and also to prevent the deposit of sediment on the bottom of the heater by the location of the feed-pipe in the heater, and other details of construction, as will hereinafter appear.

This device is an improvement on my invention shown in patent granted to me June 23, 1896, No. 562,574.

Referring to the drawings accompanying this specification, Figure 1 shows a side elevation of the pipe connections to the heater; Fig. 2, a vertical section through the boiler and furnace on line to 00. Fig. 3 shows a detail of feed-water-pipe connection to the heater, and Fig. 4; a modification of the heater.

In the drawings,A is the furnace or fire-box; B, the tube-sheet; O, the grate-bars, and D the feed-water heater.

The heater is preferably cylindrical in form and provided with supporting-necks E E, which rest in the walls of the furnace. It must be understood that this heater is adapted for any furnace and may rest on the brick walls of the same or on the water-legs of a locomotive-boiler, as shown, the neck on each end of the heater, neck E being on the upper side of the discharge end of the heater and the neck E being on the bottom of the inlet end for the feed-water or circulation from the Width of the furnace,'with one neck longer than the other, so as to permit the insertion and removal of the heater'without disturbing the construction of the boiler or furnace.

H is a nipple screwed into the T-coupling Gr, which in turn is secured to the neck E by the short pipe F. Secured to the inner end of the nipple is the perforated feed-pipe I, whichwhen the parts are in position will lie near the bottom of the heater, whereby the entering feed-water will wash away any sediment that may attempt to deposit on the bottom of the heater. To the outer end of the nipple is attached the feed-pipe K, leading from the injector or pump. To the upper nipple E is attached the discharge-pipe L, which leads to the top of the boiler near the water-line,

To the bottom part of the T-coupling is attached the circulating-pipe M, which leads to the bottom of the boiler or water-leg. This pipe is provided with a stop-valve N, which may be shutofi should the heater get out of order.

The heater shown in Fig. 4 is provided with two outlets and two inlets, so that two injectors or pumps could be used at the same time.

The operation of the device is readily un-- derstood. The Water entering through the pipes K and I into the bottom of the heater keeps the water agitated at that point, preventing any sediment collecting there and also compelling the water to circulate in the heater, so that it may become highly heated for passing out through pipe L into the boiler. The entering of the feed-water causes a circulation of the water from the bottom of the boiler to the top through the heater, and also there is an automatic circulation when the 2. In a feed-water heater for boiler-furnaces, the combination with the heater provided with an upper outlet entering about the water-level of the boiler and a lower inlet at its opposite ends, of a perforated feed-pipe smaller than the interior diameter of the inlet and entering the said inlet and located near the bottom of the heater and a circulating-pipe connected to the inlet to the heater and to the bottom of the boiler, substantially as described.

3. In a feed-water'heater the combination of a circulating-pipe leading from the bottom of the boiler to the bottom end of the heater, 

